TCN 2026 St. Louis Cardinals Prospect #47 – Matt Koperniak

November 20, 2025 The Cardinal Nation staff

Coming in at no. 47 in The Cardinal Nation’s Top 50 prospect countdown for 2026 is a 40-man roster outfielder. Matt Koperniak improved in the second half, but took an overall downturn in 2025 in his second full-season at Triple-A.

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